Agitator for liquid cooling systems



J. H. HORAN AGITATOR FOR LIQUID COOLING SYSTEMS Filed July 13, 1944 INVENTOR.

Patented on. 29, 1946 UNITED STATES OFFICE AGITATOR FOR. LIQUID COOLING SYSTEMS Joseph H. Horan, Bronx, N. Y. Application July 12, 1944', Serial No. 544,750

This invention relates to new and useful improvements in an agitator for a liquid cooling system, and is particularly intended for the radiators of automobiles. V

It is a, known fact that radiators of automobiles rust, and in time the rust becomes so bad as to clog the radiators, .and then the engines overheat. The new and improved agitator is of simple construction and is adapted to be easily connected with the radiator and by which the liquid may be agitated and then drained off with the loosened rust so as to keep the radiator relatively clean and. prevent it from reaching a state in which clogging takes place.

It i proposed to characterize the new and improved agitator by the fact that it is provided with a cylinder and piston connected with a pipe line by which the liquid may be drawn in and expelled. It is proposed to provide a cap, and certain bushings which may be easily mounted upon the radiator inlet, and be connected with said pipe line to facilitate agitating the liquid of the cooling system in an especially easy way.

The invention contemplates a modified form in which a hose is adjustably connected with the bushing so that it may be extended further down or moved upwards as required for a particular radiator of a particular automobile.

Another object of the invention is the construction of a device as mentioned which is simple and durable and which may be manufactured and sold at a reasonable cost.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawing, and to the appended claim in which the various novel features of the invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure- -1 Claim. (01. 285-2) Fig. 1 is a fragmentary elevational view of an agitator for a liquid cooling system constructed in accordance with this invention, certain parts being shown in section.

Fig. 2 is a perspective View of the cap used in the agitator, illustrated up side down.

Fig. 3 is a perspective view of the long bushing.

Fig. 4 is a fragmentary enlarged vertical sectional view through the cap and bushing of an agitator constructed in accordance with av modified form of this invention.

The agitator for a liquid cooling system, in accordance with that form of the invention illustrated in Figs. 1-3, includes a cylinder 10 provided with a piston H for drawing in and ex- H 2 pelling the liquid, of a cooling system. The piston [I is' connected with a piston rod l2 which in turn isjconnected with a lever l3 which may be manually worked' up and down. The lever I3 is pivotally mounted by a pintle M at its back end upon a bracket, I I mounted on the cylinder ID. A suitable structure 16 is provided for supporting the cylinder i0.

A nipple I1 is mounted through the bottom wall of the cylinder ill and connects with a flexible tube IS. A clamp I9 is mounted on the top end of the tube [8 by which it is clamped on the bushing IT. The tube l8 extends to and connects with a long bushing 20. A clamp 2| is engaged on the latter end of the tube I8 for securely connecting it with said long bushing 20.

A cap 22 with a washer of a design for engaging on the neck 23 of a radiator 24 of a cooling system is associated with means for holding said long bushing 20 in various positions extended through the cap. More specifically, the cap 22 has a tubular portion 25. This tubular portion extends through the cap. Its bottom end is provided with the small projections 26 by which the cap 22 is mounted on the neck of the radiator in the usual way. The cap 24 has projecting handle portions 21 by which it may be conveniently gripped. The tube 25 is externally threaded. The bushing 20 is provided with external threads by which it is threadedly mounted through the tube 25.

The operation of the device is as follows:

The clamp 2| is loosened and then the long bushing 20 is adjusted upwards or downwards in relation to the cap 22 so as to extend down as far as possible into the radiator 24. The cap 22 is mounted on the neck 23 of the radiator in place of the conventional cap. The handle it is then moved upwards and downwards so that the piston I l reciprocates at the cylinder I0 drawing in and expelling the liquid of the radiator 24. This agitates the liquid and Washe the loose particles of rust, dirt and the like off the walls of the radiator. The radiator may then be drained.

In Fig. 4 a modified construction of long bushing 20' for the agitator is shown. The long bushing 20 is provided with a support 30 in its top end. This support essentially consists of a rim 3|, several spokes 32, and a central hub 33. The hub 33 supports a stem 34 which extends axially through the long bushing 20'. Another support is mounted upon the bottom of the stem 34 and consists of a hub portion 35 mounted on the stem and connected with spokes 36 which connect with a rim 3'! located within the bottom portion of the long bushing 20', The bottom portion of the long bushing 20 is provided with a plurality of slots 38 to make it resilient. A clamping ring 39 is mounted upon the bottom of the long bushing 20. A flexible rubber hose 40 is slidably mounted Within and extends from the long bushing 20' and engages about the rim 31, The long bushing 20 is provided. with external threads which threadedly engage the tube 25 of the cap 22.

In other respects this form of the invention is similar to that previously shown and like reference numerals identify like parts in each of the several views.

The operation of this form of the invention is identical to the prior form, distinguishing merely in the fact that the clamp 39 may be loosened and then the rubber hose 4!! may be extended or retracted so as to better fit a particular design of radiator. One advantage in so far as fit is concerned resides in the fact that the rubber hose 40 may be bent laterally to engage further down into the radiator and avoid: obstructions directly beneath the neck of the radiator.

While I have illustrated and described the pre ferred embodiments of my invention, it is to be understood that I do notlimit myself to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claim.

Having thus described my invention, what I claim as new and. desire to secure by United States Letters Patent is:

A coupling structure, for use with a radiator having a neck portion, comprising a tube fitting into said neck and having an internally threaded sleeve portion protruding from said neck, an elongated externally threaded bushing adjustably threaded into the sleeve and presenting an upper end to which a pipe may be detachably secured, a cap fitting over said sleeve for engagement with said neck, a sealing gasket in said cap, a hose closely fitting inside said tube terminating short of the outer end thereof and extending out of the inner end thereof, rings positioned in the outer end of the tube and. in the hose at the inner end of. said tube and arranged to resist clamping pressure applied to the tube externally thereof, the inner end of said tube being slotted in that portion in which one of said rings. is positioned, and a connector for joining said rings in. fixed spaced relation with. each. other.

J OSEPBLI-L HORAN. 

